Extraction equipment crane hook introduction .pdf
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Elastic cable reel Features
. a performance and features:
Installation is simple, good synchronization performance double beam grab crane, cable tension,
but spring fatigue, short life.
. b Scope:
Electric hoist for cable: 35mm cross-sectional area less than the following 24 core power cables
and signal cables ;
Winding length: less than 30m;
Applicable equipment: such as electromagnetic chuck , grab, electric hoist .
. c works:
Elastic cable reel works with steel tape measure similar to the use of force to scroll spring winding
cables. When the cable is pulled out wire rope hoist, tighten the scroll spring and storage , when
the external force undo, spring is discharged , the automatic winding cable reel .
Driving extract device - hook Introduction
Driving through the device will extract with electric hoist lifting objects linked to the lifting
mechanism , which carry these items , such as lifting and handling installation . Extract a wide
variety of devices .
Extract the most devices on the bridge , gantry crane using a hook . Fracture of the hook is very
dangerous. May result in significant personal injury . Therefore, the requirements of the hook
material is no danger of sudden rupture . Currently , small road from the weight of the hook is
forged ; big hook from the weight of traffic using steel riveting, called chip hook .
Hoist hook into a single hook and hook . Single hook manufacture and use more convenient for
smaller starting weight ; When the weight is larger onwards, in order not to make the hook too
heavy , multi-use hook .
Hook shank ( curved portion ) of the cross-sectional shape: circular, rectangular , trapezoidal, T
-shaped and the like .
Inspection focused on a variety of hook forging checks on the hook , the hook plate inspection
and hook load test . To prevent decoupling, single girder gantry crane 5 ton unexpected
accidents . Hook should be fitted with a safety device to prevent decoupling .